JPS6322021U

JPS6322021U -

Info

Publication number: JPS6322021U
Application number: JP11572686U
Authority: JP
Priority date: 1986-07-28
Filing date: 1986-07-28
Publication date: 1988-02-13
Also published as: JPH0448570Y2

Description

[Brief explanation of the drawing]

第１図は、この考案にかかる可動アームのバラ
ンス機構を備えた照明器具用可動アームの一例を
あらわした断面図、第２図は、この一例の下部を
一側からみてあらわした半断面図、第３図は、平
行リンク式機構の模式図、第４図は、第１図の照
明器具用可動アームの分解斜視図、第５図は、引
張ばね機構の分解斜視図、第６図は、自然状態の
引張ばね機構をあらわした断面図、第７図は、組
込後の引張ばね機構をあらわした断面図、第８図
は、照明器具用可動アームの動きをあらわした側
面外観図、第９図は、従来の照明器具用可動アー
ムの斜視図、第１０図は、この可動アームの模式
図である。１５，１６……アーム、３６……灯具、４０…
…引張ばね機構、４１……ばね、４６，４８，４
９……張力可変手段。 FIG. 1 is a sectional view showing an example of a movable arm for a lighting device equipped with a movable arm balance mechanism according to this invention, and FIG. 2 is a half sectional view showing the lower part of this example as seen from one side. FIG. 3 is a schematic diagram of the parallel link type mechanism, FIG. 4 is an exploded perspective view of the movable arm for the lighting device of FIG. 1, FIG. 5 is an exploded perspective view of the tension spring mechanism, and FIG. FIG. 7 is a sectional view showing the tension spring mechanism in its natural state; FIG. 7 is a sectional view showing the tension spring mechanism after installation; FIG. FIG. 9 is a perspective view of a conventional movable arm for lighting equipment, and FIG. 10 is a schematic diagram of this movable arm. 15, 16...Arm, 36...Lamp, 40...
...Tension spring mechanism, 41... Spring, 46, 48, 4
9... Tension variable means.

Claims

[Scope of utility model registration request]

One end of the arm is attached to the rotating part of the arm to which the lamp can be attached and whose angle can be adjusted freely, and the tensioner is designed to generate a pulling torque that balances the superimposed torque of the arm and the lamp. A balancing mechanism for a movable arm for a lighting device comprising a spring mechanism, wherein the tension spring mechanism includes a tension variable means.